package Practice09;

import java.math.*;
class BigIntegerExample
{  public static void main(String[] args)
{   BigInteger n1=new BigInteger("987654321987654321987654321"),
        n2=new BigInteger("123456789123456789123456789"),
        result=null;
    //n1和n2做加法运算
    result=n1.add(n2);
    System.out.println("和:"+result.toString());
    result=n1.subtract(n2);//n1和n2做减法运算
    System.out.println("差:"+result.toString());
    result=n1.multiply(n2);//n1和n2做乘法运算
    System.out.println("积:"+result.toString());
    result=n1.divide(n2);//n1和n2做除法运算
    System.out.println("商:"+result.toString());
    BigInteger m=new BigInteger("1968957"),
            COUNT=new BigInteger("0"),
            ONE=new BigInteger("1"),
            TWO=new BigInteger("2");
    System.out.println(m.toString()+"的因子有:");
    for(BigInteger i=TWO;i.compareTo(m)<0;i=i.add(ONE))
    {  if((n1.remainder(i).compareTo(BigInteger.ZERO))==0)
    {  COUNT=COUNT.add(ONE);
        System.out.print("  "+i.toString());
    }
    }
    System.out.println("");
    System.out.println(m.toString()+"一共有"+COUNT.toString()+"个因子");
}
}